import random

from django.shortcuts import render
from django.http import HttpResponse
from myadmin.models import User
from django.core.paginator import Paginator
from django.db.models import Q
from datetime import datetime
import hashlib,random

def index(request,pagIndex=1):
    umod = User.objects
    ulist = umod.filter(status__lt=9)

    mywhere = []

    #获取并判断搜索条件
    kw = request.GET.get('keyword',None)
    if kw:
        ulist = ulist.filter(Q(username__contains=kw)|Q(nickname__contains=kw))
        mywhere.append('keyword='+kw)

    #获取判断并封装status的搜索条件
    status = request.GET.get('status','')
    if status != '':
        ulist = ulist.filter(status=status)
        mywhere.append('status='+status)

    #执行分页处理
    pagIndex = int(pagIndex)
    page = Paginator(ulist,10)
    maxpages = page.num_pages

    #判断当前分页是否越界
    if pagIndex > maxpages:
        pagIndex = maxpages
    if pagIndex < 1 :
        pagIndex = 1

    list2 = page.page(pagIndex) #获取当前页数据
    plist = page.page_range #读取页码列表信息

    context ={'userlist':list2,'plist':plist,'pagIndex':pagIndex,'maxpages':maxpages,'mywhere':mywhere}
    return render(request,'myadmin/user/index.html',context)

def add(request):
    return render(request,'myadmin/user/add.html')

def insert(request):
    try:
        ob = User()
        ob.username = request.POST['username']
        ob.nickname = request.POST['nickname']

        #MD5密码加密
        md5 = hashlib.md5()
        n = random.randint(100000,999999)
        s = request.POST['password']+str(n)
        md5.update(s.encode('utf-8'))
        ob.password_hash = md5.hexdigest()
        ob.password_salt = n

        ob.status = 1
        ob.create_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        ob.update_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S')

        ob.save()
        context = {'info':'添加成功！'}

    except Exception as err :
        print(err)
        context = {'info':'添加失败！'}

    return render(request,'myadmin/info.html',context)

def delete(request,uid=0):
    try:
        ob = User.objects.get(id=uid)
        ob.status = 9
        ob.update_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        ob.save()
        context = {'info':'删除成功！'}

    except Exception as err :
        print(err)
        context = {'info':'删除失败！'}
    return render(request,'myadmin/info.html',context)


def edit(request,uid=0):

    try:
        ob = User.objects.get(id=uid)
        context = {'user':ob}
        return render(request,'myadmin/user/edit.html',context)

    except Exception as err :
        print(err)
        context = {'info':'没有找到要修改的信息！'}
        return render(request,'myadmin/info.html',context)

def update(request,uid=0):

    try:
        ob = User.objects.get(id=uid)
        ob.nickname =request.POST['nickname']
        ob.username = request.POST['username']
        ob.status = request.POST['status']
        ob.update_at = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
        ob.save()
        context = {'info':'修改成功!'}
    except Exception as err :
        print(err)
        context = {'info':'修改失败！'}
    return render(request,'myadmin/info.html',context)
